64642015 is an odd 8-digits composite number following 64642014
and preceding 64642016 . In scientific notation, it is written as 6.4642015 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 49930272 positive integers (up to 64642015) that are relatively prime to 64642015.
64642015 has 8 divisors, whose sum is 80245440
The reverse of 64642015 is 51024646
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
sixty-four million six hundred forty-two thousand fifteen
Scientific notation
6.4642015 × 10^7
Engineering notation
6.4642015 × 10^6
Prime Factorization
5 × 29 × 445807
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
64642015
Product of the distinct prime numbers
The prime factorization of 64642015 is 5 × 29 × 445807.
Since it has a total of 3 prime factors.
6 , 9 , 70 , 63 , 268 , 424 , 2604 , 4376 , 32997 , 4320 , 589666 , 158364 , 7595906 , 3255717 , 47059155 , 67655933 , 634642700 , 425429728 , 7274584959 , 1368664336
n×2
129284030
n×3
193926045
n×4
258568060
n×5
323210075
n÷2
32321007.5
n÷3
21547338.333333
n÷3
16160503.75
n÷5
12928403
n2
4178590103260225
n3
2.701124841338E+23
n4
1.7460615251064E+31
n5
1.1286893529685E+39
2 √n
8040.0258084163
3 √n
401.33308353522
4 √n
89.66619099982
5 √n
36.484044530575
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-64642014
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 64642015 can be divided by 8 positive divisors.
The sum of these divisors (counting 64642015) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110110100101101111011111
3
Ternary
11111122011011201
4
Quaternary
3312211233133
5
Quinary
113022021030
6
Senary
10225300331
8
Octal
366455737
10
Decimal
64642015
12
Duodecimal
197946a7
16
Hexadecimal
3da5bdf
20
Vigesimal
104050f
36
Base36
12hi3j
md5
51fd2b66a5a968156ee42ea226468520
sha1
85e7181e805d0635556652261e590c76ff8f2774
sha256
47d985525ad9b8ca780b1f89d745b05932a796208602d74939478321b43b1722
sha512
75729456f6092d9da66910e6922f407a16e78ef26b137cbf05ea2731f70d2f635f58e5053600b8e497a5a92e24d59bea65a4d835c82a02f240846c05b865bd07
ripemd-160
0fc743ceb7803c1a71ef61e3f0e3a68c1f3ffee8
Diameter
129284030
Circumference
406157758.87448
Area
1.3127427970765E+16
Volume
1.1314445277302E+24
Surface area
5.2509711883061E+16
Circumference
406157758.87448
Perimeter
258568060
Area
4178590103260225
Diagonal
91417614.312125
Surface area
25071540619561350
Volume
2.701124841338E+23
Space diagonal
111963254.28363
Perimeter
193926045
Area
1.8093825907128E+15
Altitude
55981627.141815
Surface area
1.8093825907128E+15
Volume
3.1833061535692E+22
Height
30472538.104042